Air filter element and air cleaner

A filtering device comprises a filter element, and filter element fixed frame structure and the filter element fixed operation device. The line implementation example, the internal component and a frame structure is fixed. Compared with good, filter element inner core component comprises a middle; the filter medium coiling in the middle on core component. Compared with good, the middle inner core component comprises multiple corrugations, wherein corrugations at least can with a circular groove of. Compared with, comprising a on the component and a middle of the core component is formed in, and further - comprising is formed on the frame structure is a fastener of the filter element. And a method of an air purifier for cleaning air bar comprises the structure of here.